145230254 has 16 divisors (see below), whose sum is σ = 240944928. Its totient is φ = 65217312.

The previous prime is 145230247. The next prime is 145230259. The reversal of 145230254 is 452032541.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145230259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74522 + ... + 76445.

It is an arithmetic number, because the mean of its divisors is an integer number (15059058).

Almost surely, 2^145230254 is an apocalyptic number.

145230254 is a deficient number, since it is larger than the sum of its proper divisors (95714674).

145230254 is a wasteful number, since it uses less digits than its factorization.

145230254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151019.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 145230254 is about 12051.1515632325. The cubic root of 145230254 is about 525.6367228561.

Adding to 145230254 its reverse (452032541), we get a palindrome (597262795).

The spelling of 145230254 in words is "one hundred forty-five million, two hundred thirty thousand, two hundred fifty-four".